Watchdog WD Function, WD Reactions | Siemens 620 guide

Hardware Information

7.4.4Watchdog (WD)

Function

The watchdog monitors the execution of a program. The purpose of the WD is to notify the user of a program crash through various reactions.

The watchdog is idle when the PC is switched on or after a HW-RESET(cold start), i.e. no reaction of the WD will be triggered and the RUN LED is switched off. If the watchdog is activated (by driver or SOM program) the Run LED is green.

WD Reactions

If the WD is not triggered again within the set time (by driver or SOM program), the following reactions are initiated:

Reaction	Option

Watchdog LED switches from green to red	always

Acknowledge WD	always

Initiate reset of the PC	adjustable

SOM application is displayed	always

The reactions which are to be triggered can be parameterized by driver or SOM program.

WD Monitoring Times TWD

The monitoring times are adjustable in increments of one second in a range from 3 to 255 seconds.

Note

If the watchdog time is changed after the watchdog was activated (i.e., while the watchdog is running), the watchdog is retriggered!

SIMATIC Box PC 620 Manual	7-7
A5E00131465-01

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Siemens 620 appendix Watchdog WD Function, WD Reactions, WD Monitoring Times TWD

Contents

Appendix Box PC Trademarks Safety GuidelinesQualified Personnel Correct Usage Certifications, Standards and Approvals Where is this Manual Valid?Preface Purpose of the Manual Structure of the Manual Simatic Documentation on the Internet Further Support Available worldwide, around the clock Automation an Drives, Service & Support Vii Service & Support on the Internet Simatic Box PC 620 Manual A5E00131465-01 Table of contents Table of contents Index Index-1 Current Requirement of the Components Maximum ValuesGuidelines for handling electrostatic sensitive devices ESD Glossar-1 Simatic Box PC 620 Manual A5E00131465-01 Installation Safety InstructionsImportant Information Warnung Power Connection For operation with 240 Country-Specific Information RepairsFor the United States and Canada For operation with 120 Battery Application Requirements Emitted Interference Immunity EMC DirectiveLow Voltage Directive Field of Application Requirement For ISO 9001 Certificate Observing the Setup GuidelinesConnecting Peripherals Declaration of Conformity Security Certification for the USA, Canada and Autralia Australia Canada Transporting Transport Simatic Box PC 620 Manual A5E00131465-01 Overview of Chapter Welcome to the Simatic Box PCChapter You will find Connection for PC Cards type I/II/III PS/2 socket for connecting a PS/2 mousePort Side View Internal slots for expansion modules You can connect an external VGA monitor to this connector Drive Side View Device Fan Drive Side View Bottom View Equipotential Grounding Bottom View Side View Front Ports PortsVGA Port Types of Diskette Disk Drive Depending on the Device Configuration2 LS 240 Drive Depending on Device Configuration Drives Information on the LS240 Disk Drive Restrictions Handling Disks with the LS 240 DriveTools under Step Usage Notes for LS240 Superdisks Authorization with Authors WEmergency Removal Emergency removal Hard Disk DriveCD ROM or CD RW/DVDCombo Drive Operation Additional Software Backup Battery Profibus Setting Up and Operating Simatic Box PCChapter Overview PROFIBUS/MPI SVP Unpacking and Checking the Scope of DeliveryUnpacking the Simatic Box PC Recording the Serial Number and the Ethernet address Installing the Simatic Box PC Instructions for wall and ceiling mounting 297.2 80.1 301 286 266 232 11.2 297.2 99.1 301 286 297.2 Setting Up and Operating the Simatic Box PC Position Fan Side Down Port Side Down Preparing for Operation Connection to the Power Supply Unit Switching off the Simatic Box PC Connecting and Switching on the Simatic Box PCEquipotential Measures Risk of damage to the unit Connecting Peripheral DevicesConnecting the Printer to the Parallel Port Printer should also be switched off Connecting Monitors Connecting the Printer to the Serial Port Connecting a PS/2 Mouse Using a MouseConnecting a Serial Mouse PS/2 keyboard of your choice can be connected to the Box PC Connecting a PS/2 Keyboard 10 USB connection Connecting Devices to an USB Interface PC Cards Working with PC Cards Dr. Neuhaus Installing PC CardsPeak currents of 650 mA at 5 V based on 3 s are permitted Examples of Pcmcia cards connected to PC card interface for Configuring Interfaces with Line Current TTY, 20 mA Connecting the Simatic Box PC 620 to other Simatic S5Point-To-Point Connection Risk of damage Interface Link Connecting Adapter Cable Connecting the Simatic Box PC 620 via an Adapter Simatic Box PC 620 to PG Connection V.24, TTY Interface Link Connecting Cable Adapter Risk of damage to the Simatic Box PC 14 Connection Using the PROFIBUS/MPI Interface PROFIBUS/MPI Network Connecting Hardware Requirements Networking the Simatic Box PC 620 with Other Stations onNetworking the Box PC on Profibus How the Network Functions Connection under Windows Ethernet RJ45 Ethernet InterfaceNetworking Box PC via RJ45 Ethernet Interface What Does This Chapter Contain? Simatic Box PC 620 Expansions Limitation of Liability Opening the Unit Prerequisites Tools Before Opening the Unit Box PC 620 Prepared for Opening Opening the Simatic Box PC Components Components Visible After Opening the Unit Motherboard Components on the Motherboard Optional product featureNumber Functions Standard Memory Installing Memory Expansion SubmodulesMemory Modules Mbytes Installing the SO Dimm Cards Replacing tthe Battery Replacing the Backup BatteryBattery Power Supply for Real-Time Clock and Configuration Battery Voltage too Low Position of the Backup Battery Changing Setup A31 Installation of Expansion CardsC18 A31 Short PCI Cards 5 Slide elements are in the enclosed plastic bag 10 Removal/Installation of an Expansion Card Aligning the Holding-Down Device 11 Removal/Installation of an Expansion Card Removal and Installation of an Expansion Card 12 Installation and Removal of the Drive Holder 13 Hard Disk Drive with Holder Removed 14 Box PC 620 with CD ROM Drive Removal and Installation of a CD ROM Drive 15 Installation of the Floppy Disk Drive in the Box PC Removal and Installation of the Floppy Drive 16 Installation of the LS 240 Drive Removal and Installation of the LS 240 Drive 17 Removal and Installation of the Power Supply Unit Removal and Installation of the Power Supply Unit 18 Removal and Installation of the Bus Board Removal and Installation of the Bus Board 19 Fixing Screws on the Motherboard Removal and Installation of the Motherboard 20 Removal and Installation of the Device Fan Removal and Installation of the Device Fan 21 Changing the Processor Processor Change 22 Reset Button Reset Button Simatic Box PC 620 Manual A5E00131465-01 Configuring the Simatic Box PC Changing the Device Configuration with Bios Setup Selectable submenu Screen Display Following Power On Menu Meaning Menu Structure By submenus Setting in the Main MenuMain Menu Field Meaning Diskette a Disk drive System Time und System Date Uhrzeit und DatumDate Type Field Multi Sector-Transfer Field Write Back Memory Cache Submenu QuickBoot Mode Enabled Boot Options Submenu Summary Screen NumLock Keyboard Features Submenu Entry Meaning Hardware Options SubmenuPCI-MPI/DP *1 Simultan CRT / LCD Advanced Menu Setting in the Advanced Menu DOS Submenu COM/LPT ConfigurationOther Bidirectional PCI Configuration SubmenuSettable Mode Features Output Only Printer Port Internal LPT1 PCI Devices Submenu IRQ Available Submenu PCI/PNP ISA IRQ Resource Exclusion PCI IRQ line Field AGP Submenu Video Adapter SettingsPCI Summary Security Menu Was entered during system boot This menu has the following structure Power MenuAPM This menu allows you to prioritize the boot devices Boot Sequence Menu 19 Boot Sequence Menu Example Simatic Version Menu Exit Menu Setup program is always terminated using this menuExit Menu Documenting Your Device Configuration Default Setup SettingsSystemparameter Default Settings YourEntries DMA IRQ4IRQ3 IRQ7 Version PowerBoot Sequence Security Configuring the PC Card Error Diagnosis Cause Problems When Using Modules from Other ManufacturersError Display PC crashes during power up Cause and Remedy Monitor Remains Dark Mouse driver is not loaded Screen Display Does not Appear or DriftsNo Mouse Pointer Appears on the Screen Mouse pointer may not appear for the following reasons USB-Device does not function Clock Time and/or the Date in Your PC Is Incorrect Error Messages An Error Message Appears on the ScreenError Message on the Screen Meaning/Suggestion Cmos Beeps Hex-Code Diagnostic Messages PortSpecial codes Example Display Meaning Description Hex Post codes in order of occurrence Tperrormsgs TpconfigTpquietbootstart Tpcacheconfig Tperrorcheck TpenablenmiTppmsetup Tpsetupchek Simatic Box PC 620 Manual A5E00131465-01 Hardware Information Component Voltage +5V +3.3V +12V Basic System with Power Supply Unit 85WBasic System with Power Supply Unit 105W Current Requirement of the Components Maximum Values Component/Port Description Parameters Overview of the Components and Ports Windows NT Start Programs Accessories System Tools System InformationSystem Resources Windows Overview Function Signals on the Front InterfaceMeaning of the indicators is as follows Monitoring functions Reaction Option Temperature Monitoring/Indication WD Reactions Watchdog WD FunctionWD Monitoring Times TWD Reaction Option SOM application is displayed Always Fan Monitoring External Ports Port Position Connector Description Pin No Designation Description Input /Output Line current TTY interface is an optional product featureSerial Port COM1 PLC/V.24/Modem Serial port COM 1 on the Box PC has the following pinout Pin No Designation Description Input / Output Gender Changer for COM1Serial Port COM2 V24/Mouse Serial port COM 2 on the Box PC has the following pinout Parallel port LPT 1 on the Box PC has the following pinout Parallel Port LPT1 PS/2 Keyboard PS/2 Mouse PortPin-No Designation Description Input / Output Universal Serial Bus ports have the following pinout USB PortVCC Pin No Designation Description Input/output PROFIBUS/MPI Socket Connector Is not necessary for data transfer Ethernet RJ45 Connection VGA socket connector on the Box PC has the following pinout VGA Socket Connector Display Port Cmos Assignment of the Front Ports on the Motherboard Enab Pin SignalMSB Vcon Display Port Lvds Pin No Allocation of the Display to Display Select PinsDisplay type Port for Front Control Elements Internal Serial Port COM2 Assignment of the Internal Ports on the Motherboard Port to the Bus Unit Pin Row a Description Row B DC Port of the Power Supply Unit 85W Pin no Designation Description DC Port of the Power Supply Unit 105WP3V Assignment of the IDE Ports Port to the Floppy Disk Drive Meaning Pin X4/X3 Pin Pin No X31 Meaning Connection for LS240 Drive Connection for Device Fan Connection for Backup BatteryPS Connection for Hard Disk Connection for CPU Fan 10 Bus Board Bus Board Design and Mode of Operation Pin Designation Type ISA Slot Pin Assignment DACK5# SBHE# MEMCS16#DACK0# MEMR# DRQ MEMW# 5V System Environment Side B Side a PCI Slot Pin Assignment5V System Environment Side B Side a PCI Socket PCI Slot Shared ISA PCI Slot Pin No Assignment of the Slot Specific PCI Bus Signals Power-Good-Signal Power Supply with 85W power output AC and DCTechnical Specifications Power-Good-Signal 12 Time Characteristics of the Power Good Signal Power Supply with 105W power output AC and DC Simatic S5 Connecting Cable Connecting CablesSimatic S7 Connecting Cable for MPI/DP Section Description Reinstallation of the Software Primary Partition Creating an Extended Partition Creating Partitions under Windows NT Creating Partitions under Windows Primary Partition, FAT32 File System Creating an Extended FAT 32 Partition Installing the Recovery CD for Microsoft Windows Installing the Windows Operating System Windows NT Installation Sequence Installing the Recovery CD for Microsoft Windows NT Installing the Recovery CD for Microsoft Windows Windows 2000 Installation Sequence Setting the Language Selection for Windows Installing and Operating the Burner Software Installing Drivers and Software Simatic Box PC 620 Manual A5E00131465-01 Guidelines for handling electrostatic Sensitive devices ESD Definition What does ESD mean? Charging Electrostatic charging Avoid direct contact Ensuring a good ground connection Technical Specifications Electromagnetic compatibility EMC Technical Specifications of the Simatic Box PCSafety General Motherboard Mechanical SpecificationsSpecial Features Ambient Conditions Graphics Function Indicators LEDs on the DevicePorts Glossary-1 Glossary AuthorsW Authorization DisketteAcpi ASCII-Editor Bios CD ROM Dimm ControllerCursor Cursor Control DVD Formatting EideEthernet File Html HMIHttp IDE Jeida InterfaceIRQ ISA LED LCD MS-DOS Parallel Interface PasswordNetwork Operating System PIC PCIPcmcia PG Link Profibus Power ButtonPower Management Plug and Play ROM RAMRTC SOM SetupStep TFT Svga User program TouchscreenURL USB User Interface Windows Video AdapterWarm Start WAV Glossary-21 Write ProtectionW2k Another name for Windows Simatic Box PC 620 Manual A5E00131465-01 Index-1 Index Index Index-3 Simatic Box PC 620 Manual A5E00131465-01